Abstract: The converting of linear motion into rotational energy when using the cylinders and pistons of an internal combustion engine without the use of a crankshaft. The replacement with dual high lead cam-screws and dual cam-followers allows for the efficient use of a complete combustion stroke without the resistance from the crankshaft at top dead center, and a greatly reduced resistance for the return stroke as there is no crankshaft turning resistance at the outer limit of the piston stroke.

Abstract: (c) This invention relates to the converting of linear combustion force into rotational force within an internal combustion engine. Most internal combustion engines have a crankshaft, but due to the rotational friction loss and combustion force on a crankshaft at TDC, the current engine configuration has limited efficiency. The current engine takes the full thrust of combustion at TDC whilst trying to rotate a crankshaft. A further disadvantage, is the pistons exert piston slap on both sides of the cylinder bore. The crankshaft also causes friction loss from indirect alignment of the connecting rods. The present invention, by using central half-shafts linking two opposing pistons, greatly reduces friction loss, whereby lineal force is converted into rotational power by means of sliding cam followers, whereby an outer captive thickwalled tube with machined high lead cam-screws receives this power, which in turn is transferred by a central gear to the drive train.

Abstract: A multi-pump controlling means and method controls and drives two or more reciprocating pumps creating proportioned flows of fluids. The multi-pump controlling means in use is situated between a driving means, such as a double acting ram, and the pumps. The multi-pump controlling means includes two or more cams that each interact with a cam follower attached to the pumps. The cams may be set or adjusted to different gradients, meaning the cam followers following those gradients when the multi-pump controlling means is reciprocated by the driving means, will have different path lengths. The path lengths of the cam followers control the stroke lengths of the respective pumps and thus the volume of fluid pumped by each of the respective pumps.